import java.util.*;
class N024{
	public static void main(String args[]){
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int e[] = new int[10];
		int count;
		for(int i = 0; i < n; i++){
			int a = s.nextInt();
			int b = s.nextInt();
			int c = s.nextInt();
			int d = s.nextInt();
			String r = s.next();
			if(r.equals("YES")){
				count = 1;
			}else{
				count = -1;
			}
				e[a] += count;
				e[b] += count;
				e[c] += count;
				e[d] += count;
		}
		
		int max = 0;
		for(int i = 0; i < e.length; i++){;
			max = Math.max(max , e[i]);
		}
		for(int i = 0; i < e.length; i++){
			if(e[i] == max){
				System.out.println(i);
			}
		}
	}
}